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E. R, WILLIAMS. MECHANICAL MOVEMENT FOR TIME LOOKS.

No. 590,927. Patented Sept. 28,1897.

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NITED STATES PATENT rricr ELZY R. XVILLIAMS, OF ST JOSEPH, MISSOURI, ASSIGNOR OF ONE-HALF TO \VILLARD E. BURNETT, OF SAME PLACE.

I MECHANICAL MOVEMENT'FOR TIME-LOCKS.-

SPECIFICATION forming part of Letters Patent No. 590,927, dated September 28, 1897.- Application filed March 6, 1897. Serial No. 626,264- (N'o model.) i

To (all whom it ntrl/y'con/ocrlt:

Be it known that I, ELZY R. WILLIAMS, of St. Joseph, in the county of Buchanan and State of Missouri, have invented new and useful Improvements in Mechanical Movements for Tim e-Locks, of which the following is a full, clear, and exact description.

The purpose of this invention is to provide means by which upon the accidental break ing of the mainspring in a time-lock the lockv may be prevented from becoming permanently fastened, so as to avoid the necessity of breaking the structure of the lock or the safe or other chamber to which the lock is applied.

The invention is adapted to all classesof time-locks having either moving or stationary barrels; and it consists in certain combi= nations or features of construction by which upon the breaking of the spring movement is transmitted either tothrow the bolt tore-1 leased position or to throw certain mechanism by which it is possible to subsequently. and manually throw the bolt.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar characters of reference indip I .13 and a'collar 19 is a loose ratchet-wheel 20, having a longitudinal slot 21 formed therein. The slot 21 receivesa pin 16 on the wheel 15, and when the wheelis rocked by the break- .ing of the spring a partial turn is imparted cate corresponding parts man the views.

Figure 1 is a sectional view on theline 1 1, of Fig. 2.. Fig. 2 is a sectional view on'the'" line 2 2 of Fig. 1. s Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 4is a sectionalview on the line 4 4 of Fig. 2. Fig. 5 is a sectional view showing the invention applied to a form of look different from that shown in the first four figures, the sectionbeing taken on the line 5 5 of Fig. 6; and Fig. 6 is a sectional view on the line 6 6 of Fig. 5.

Referring to the first four figures, the main casing 7 and the frame 8 of the time-lock are of the usual construction. Mounted in the frame 8 is a main arbor 9, to which a helical, spring 10 is fixed. The spring 10 is inclosed in a revolublebarrel 11, mounted on the arbor 9 and having a line of gear-teeth 12 running around its periphery and directly adjacent to its front end.

Let into the front end of the barrel 11 is an annular plate or disk 13, in the outer face of which is formed a circular recess 14; Mounted to turn within the recess 14 is a eachspring being fixed to the plate 13.

is unduly expanded, or when the spring has unwound past the point at which the timelock in regular operation releases the bolt of the lock, the pin 17 in its normal position being far enough away so that it does not impede the regular movement of the spring 10. The breaking of the spring 10 causes an expansionof this outer convolution of the spring, whereupon .the pin 17 will be pushed outward and caused to move from its normal position at the'bottom of the slot 18, as

shown by dotted lines in Fig. 3, to the opposite end of the slot'lS.

the'wheel 15,"caused by the breaking of the spring 10, transmits movement to the other part of ,the mechanism, as will appear hereinafter'.

Confined on the arbor 9 between the plate to the ratchet-wheel'20. The ratchet-wheel 2 0 has two' approximately quadrant-shaped openings 30 formed therein, and located in each opening 30 is a spring 31, one'end of,

The opposite end of each spring 31 is bent to respectively fit into recesses 32, forming portions of the openings 30. These springs 31 press the wheel 20, so that pressure will be communicated to the wheel 15 by the pin 16 and the "pin 17 normally heldin the position shown by dotted lines in Fig. 3 and in full lines in Fig. 4.

Mounted on an arbor 22, held in the frame 8, is a wheel 23, carrying a pivoted pawl 24 and a spring 25,by which the pawl is actuated. The spring 25' presses the pawl 24 against the ratchet-wheel 20, and the disposition of the parts is such that upon the turning of the This movement of wheel the ratchet-teeth thereof will act on the pawl 24, so as to impart to the wheel 23 a partial movement.

The wheel 23 is preferably located within the frame 8 and carries a pin 26, projecting through a slot in the frame and havinga link 27 pivoted to its outer end. The link 27 runs alongside the frame 8 and has its opposite end slotted to receive the wrist-pin 28 of a crank-disk 29. hen, therefore, the wheel 20 moves, it imparts a like movement to the wheel 23, which in turn transmits to the disk 29 such movement as may be employed by means wellknown in the art either to directly throw the bolt of the lock to released position or to throw certain restraining devices which will permit the bolt to he subsequently moved.

The link 27 is slotted to allow the disk 29 movement independently of the link at certain times, which may in certain instances be necessary, since the disk 2.) may be placed in connection with the usual mechanism of the time-lock, so that when the time-lock operates in its proper and normal manner the disk 29 will be moved in the direction of the arrow shown in Fig. 1 to release the bolt'in the regular operation of the apparatus. This movement in the direction of the arrow will be independent of the link 27 owing to the slot in the link. The barrel 11 through the medium of its cog-teeth 12 transmits movement to a pinion 33, which forms part of the .usual train of the look.

In Figs. 5 and 6 the barrel 34 is held fast to the frame 35, and the arbor 3Gruns loosely through the barrel and frame and has the helical spring 37 fixed thereto. The helical spring 37 is also fixed to the barrel 34. The arbor 86 has the usual clutch device 38, comprising a pinion 39, from which movement is taken to operate the clock mechanism. The plate 40 is similar to the plate 13 and carries a wheel 41, similar to the wheel 15. The wheel 41 transmits a slight turn to a ratchetwheel 42, similar to the ratchet-wheel 20, while the ratchet-wheel 42 in turn transmits its movement to a disk 43. From the disk 43 the link 44 passes to the crank-disk 45.

The parts 43, 44, and 45 are respectively similar to the parts 23, 27, and 29, before described.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination with the spring of a clock mechanism, of a wheel mounted adjacent to the spring, a pin carried by the wheel and engaging the spring, a second pin carried by the wheel, a ratchet-disk having a longitudinal slot in which the second pin extends, a wheel mounted adjacent to the ratchet-wheel, a pawl carried by the last-named wheel and engaging the ratchet-wheel, a link pivoted to the last-named wheel, and a crankdisk with which the link is connected, substantially as described.

2. The combination with the spring of a clock mechanism, of a ratchet-disk mounted adjacent to the spring, means engaging the spring and ratchet-disk and transmitting movement between the two, a diskpivotally mounted adjacent to the ratchet-disk, a pawl carried by the last-named disk and engaging the ratchet-disk, a link pivoted to the disk which carries the pawl, and a crankdisk in connection with the link, substantially as described.

3. A mechanical movement for time-locks, having a wheel capable of being turned upon the fracture of the spring of the time-lock, a ratchet-disk in connection with the wheel and turned thereby, a second disk pivotally mounted adjacent to the ratchet-disk, and a pawl carried by the second disk and engaging the ratchet-disk, substantially as described.

4. The combination with the spring of a time-lock, of a wheel mounted adjacent to said spring and turned by the undue expansion of the spring, a disk in connection with or turned by the wheel, a spring pressing the disk to hold the disk and wheel in normal position, a second disk mounted adjacent to the ratchet-disk, and a pawl carried by the second disk and engaging the ratchet-disk, substantially as described.

5. The combination with the spring of a time-lock, of a wheel mounted adjacent thereto and turned thereby upon the undue expansion of the spring, a gear-wheel in connection with and turned by the first-named wheel, and a spring pressing the gear-wheel to hold the two wheels in normal position, substantially as described.

6. The combination with the spring of a time-lock, of a wheel mounted adjacent to the spring and turned upon the undue expansion of the spring, a pin fixed to the wheel, a gearwheel having a slot receiving the pin, and a spring pressing the gear-wheel to hold the two wheels in normalposition, substantially as described.

7. The combination with the spring of a clock mechanism, ofa wheel in connection with and turned by the undue expansion of the spring, and a gear in connection with the wheel and moved upon the movement of the wheel, substantially as described.

8. The combination with a helical spring and a barrel therefor, of a plate carried by the barrel and having an indentation in its face, a wheel mounted to turn within the in dentation, a pin carried by the wheel and projecting into the barrel to engage the spring, a second pin carried by the wheel, a gearwheel mounted adjacent to the plate of the barrel and having a slot receiving the second pin of the first-named wheel, and a spring attached to the said plate of the barrel and pressing the gear-wheel to hold the gearwheel and the first-named wheel in normal position, substantially as described.

9. The combination with the casing and ICC IIO

' spring, of a wheel carried by the barrel and frame of a time-lock, of a time-lock spring mounted therein, means in connection with the spring for actuating the bolt of the lock, and driven upon the fracture thereof, a crankdisk capable of being connected with the timelock mechanism, and a link connected to the said bolt-actuating mechanism and having slotted connection with the crank-disk, substantially as described. v

10. The combination with the casing and frame of a time-lock, of a spring mounted therein, means for aetuatingthe bolt of the lock, and driven upon the fracture of the spring, and a crank-disk capable of being connected with the time-lock mechanism and having slotted connection with said bolt-actuating means, substantially as described.

11. The combination with a barrel, and its provided with pins projectingfrom its opposite sides, one of the said pins projecting into the barrel, a ratchet-wheel on the arbor of the barrel and with which the other pin of the said wheel engages, and a pivoted disk carrying a pawl engaging the ratchet-wheel and adapted to be connected with the time-lock mechanism, substantially as described.

12. The combination with a barrel having a recessed and slotted disk at one end, and the spring in the said barrel, of .a wheel mounted in the said. recess and provided with a pin projecting from each side, one of the said pins projecting through the slot of the disk into the barrel, a ratchet-wheel on the arbor of the barrel and provided with a slot through which the other pin of the wheel projects, and a pivoted disk provided with a spring-pawl en gaging the ratchet-wheel, said disk being adapted to be connected with the time-lock mechanism, substantially as described.

13. The combination with abarrel provided with a disk at one end having a recess in one side and a curved slot, and a spring in the barrel, of a wheel mounted in the recess of the disk and provided with a pin projecting from each side, one of the pins projecting through the slot of the. said disk, a ratchetwheel loosely mountedon the arbor of the barrel and connected by a spring with said barrel,said ratchet-wheelbein g provided with a longitudinal slot, through which the other pin of the said wheel projects, and a pivoted disk adapted to be connected with the timepin of the said wheel projects and with two approximately quadrantal-shaped openings, springs in said openings, said springs having one end secured to the disk of the barrel,.and

a pivoted disk adapted to be connected with the time-lock mechanism and provided with a spring-pawl engaging the ratchet-wheel, substantially as described.

ELZY B. WILLIAMS. Witnesses:

CARLTON R. CHEsMoRE, HENRY B. TYMON. 

